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| Question | Answer |
| What is an acronym for remembering the 7 steps of creating a statistical model? | Open Drug Users Cause Collapse And Reduction. |
| What are the 7 steps of designing a statistical model? | 1. Observe a real world problem. 2. Devise a mathematical model. 3. Use model to make prediction about behaviour of the real world problem. 4. Collect experimental data on the real world problem. 5. Compare predicted and observed outcomes. 6. Assess how the model describes the real world. 7. Refine model to obtain better match. |
| Give 5 advantages of using a statistical model. | -To simplify a real world problem. -To improve understanding/describe/ analyse a real world problem. -Quick and cheaper than the real thing. -To predict future outcomes. -To help refine the model by comparison with the actual problem. |
| Give 2 disadvantages of using a statistical model. | -They only give a partial description of the real situation. -They only work for a restricted range of values. |
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